Uses

Principal Proposed Uses

Other Proposed Uses

An herb of bright yellow, umbrella-shaped flowers, lomatium was widely used among native peoples of North America as a treatment for a variety of infections, especially those involving the lungs. Reportedly, use of this herb protected the Washoe Indian tribe of Nevada from suffering any deaths during the 1917/1918 worldwide pandemic of influenza. It was also said to be useful for pneumonia and tuberculosis.

What is Lomatium Used for Today?

Lomatium is currently regarded by some herbalists as an effective treatment for many types of viral infection, including
HIV
,
viral hepatitis
,
colds and flus
,
acute bronchitis
, sinusitis, and
herpes
. However, there is no meaningful scientific evidence that lomatium is helpful for these conditions, nor indeed that it has any antiviral effects at all. The story mentioned above about the great influenza pandemic of 1917/1918 cannot be taken as meaningful evidence of benefit; like all other great plagues, the influenza pandemic gave rise to innumerable rumors of cures, none of which have held up to scientific testing.

At most, there is exceedingly weak evidence from a small number of
test-tube studies
hinting hint that
Lomatium
species might have antiviral properties.
1-3
However, tens or hundreds of thousands of substances have shown antiviral effects in the test tube; very seldom do benefits hypothesized from preliminary test tube studies hold up when human studies are performed. Only
double-blind
, placebo-controlled studies can show a treatment effective, and no studies of this type have been performed on lomatium. (For information on why such studies are essential, see
Why Does This Database Rely on Double-blind Studies?)

Dosage

Lomatium is typically used in the form of a resin-free extract, taken at a dose of 1–3 ml daily.

Safety Issues

Lomatium has not undergone any modern safety testing. Reportedly, lomatium resin frequently causes allergic reactions leading to a whole-body rash; this is why resin-free products are sold. In addition, lomatium may cause digestive distress. Safety in young children, pregnant or nursing women, or people with severe liver or kidney disease has not been evaluated.

Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.